Home / 20,774.24-31,160.32-7,625.57

Finding the Fourth Proportional to 20,774.24, 31,160.32 and 7,625.57

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Solution

The fourth proportional to 20,774.24, 31,160.32 and 7,625.57 is: 11,437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.24 : 31,160.32 = 7,625.57 : x
  2. Step 2: Convert to fraction form
    20,774.24/31,160.32 = 7,625.57/x
  3. Step 3: Cross multiply
    20,774.24x = 31,160.32 × 7,625.57
  4. Step 4: Simplify right side
    20,774.24x = 237,615,260.22
  5. Step 5: Solve for x
    x = 237,615,260.22/20,774.24
  6. Step 6: Final answer
    x = 11,437.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.